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Species Clostridium thermautotrophicum
Name: Clostridium thermautotrophicum corrig. Wiegel et al. 1982
Etymology: therm.au.to.tro’phi.cum. Gr. masc. adj. thermos, hot; Gr. masc. pron. autos, self; Gr. masc./fem. adj. trophos, a feeder; N.L. neut. adj. thermautotrophicum, self-feeding in heat, indicating that the organism grows at elevated temperatures and uses CO2 as its principal carbon source for growth
Pronunciation (Latin), gender: … therm-a͡u-to-TRO-phi-kum, neuter
Type strain: ATCC 33924; DSM 1974; JW 701/3
Conduct genome-based taxonomy at
16S rRNA gene:
X77849
Analyse
FASTA
Effective publication:
Wiegel J, Braun M, Gottschalk G. Clostridium thermoautotrophicum species nova, a thermophile producing acetate from molecular hydrogen and carbon dioxide. Curr. Microbiol. 1981; 5:255-260. 
IJSEM list:
Anonymous. Validation list no. 9. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1982; 32:384-385.
Nomenclatural status: validly published under the ICNP, rejected name
Taxonomic status: synonym (and not recommended for medical use)
Correct name: Neomoorella thermoacetica (Fontaine et al. 1942) Gtari and Ventura 2025
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Synonyms:
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Name Kind Moorella thermoautotrophica (Wiegel et al. 1982) Collins et al. 1994 homotypic synonym, validly published under the ICNP, rejected name Neomoorella thermoacetica (Fontaine et al. 1942) Gtari and Ventura 2025 heterotypic synonym, validly published under the ICNP Moorella thermoacetica (Fontaine et al. 1942) Collins et al. 1994 heterotypic synonym, validly published under the ICNP, illegitimate name Clostridium thermaceticum corrig. Fontaine et al. 1942 (Approved Lists 1980) heterotypic synonym, validly published under the ICNP, inappropriate correction Clostridium thermoaceticum Fontaine et al. 1942 (Approved Lists 1980) heterotypic synonym, validly published under the ICNP Clostridium thermoautotrophicum Wiegel et al. 1982 other spelling of name, inaccurate spelling and rejected
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Notes:
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⏲ According to Redl et al. (2020), this species is a later heterotypic synonym of Clostridium thermaceticum corrig. Fontaine et al. 1942 (Approved Lists 1980).
Publication:
Redl S, Poehlein A, Esser C, Bengelsdorf FR, et al. Genome-Based comparison of all species of the genus Moorella, and status of the species Moorella thermoacetica and Moorella thermoautotrophica. Front Microbiol 2020; 10:3070.
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⏲ According to Redl et al. (2020), this species is a later heterotypic synonym of Moorella thermoacetica (Fontaine et al. 1942) Collins et al. 1994.
Publication:
Redl S, Poehlein A, Esser C, Bengelsdorf FR, et al. Genome-Based comparison of all species of the genus Moorella, and status of the species Moorella thermoacetica and Moorella thermoautotrophica. Front Microbiol 2020; 10:3070. 🇩🇪
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⏲ According to Redl et al. (2020), this species is a later heterotypic synonym of Clostridium thermoaceticum Fontaine et al. 1942 (Approved Lists 1980).
Publication:
Redl S, Poehlein A, Esser C, Bengelsdorf FR, et al. Genome-Based comparison of all species of the genus Moorella, and status of the species Moorella thermoacetica and Moorella thermoautotrophica. Front Microbiol 2020; 10:3070. 🇩🇪
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⏲ According to Redl et al. (2020), this species is a later heterotypic synonym of Neomoorella thermoacetica (Fontaine et al. 1942) Gtari and Ventura 2025.
Publication:
Redl S, Poehlein A, Esser C, Bengelsdorf FR, et al. Genome-Based comparison of all species of the genus Moorella, and status of the species Moorella thermoacetica and Moorella thermoautotrophica. Front Microbiol 2020; 10:3070. 🇩🇪
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🏢 Synonymy of this taxon was mentioned in an IJSEM list.
Publication:
Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.
- 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
- 🎓 Name mentioned 0 times in PubMed until 2025-06-04.
- 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.
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🧍 Rejected name (Opinion 115). As the type strain is not available from any established culture collection, nor from the authors who originally described the species, Kimura et al. 2016 propose to place the name on the list of rejected names if no replacement is found within two years (Int J Syst Evol Microbiol 66, 3249 – 3251). Such a deadline is a misinterpretation of the Code, but the epithet of the name was indeed placed on the list of rejected epithets.
Publication:
Kimura ZI, Hoshino T, Murakami K. The status of the species Moorella thermoautotrophica Wiegel et al. 1981. Request for an Opinion. Int J Syst Evol Microbiol 2016; 66:3249-3251. 🇯🇵
- 🧍 The original spelling, Clostridium thermoautotrophicum (sic), has been corrected by Cato et al. 1986. Publication: Cato EP, George WL, Finegold SM. Genus Clostridium Prazmowski 1880, 23AL. In: Sneath PHA, Mair NS, Sharpe ME, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 2, The Williams & Wilkins Co., Baltimore, 1986, p. 1141-1200.
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⏲ According to Redl et al. (2020), this species is a later heterotypic synonym of Clostridium thermaceticum corrig. Fontaine et al. 1942 (Approved Lists 1980).
Publication:
Redl S, Poehlein A, Esser C, Bengelsdorf FR, et al. Genome-Based comparison of all species of the genus Moorella, and status of the species Moorella thermoacetica and Moorella thermoautotrophica. Front Microbiol 2020; 10:3070.
Parent taxon: Clostridium Prazmowski 1880 (Approved Lists 1980)
Assigned by:
Wiegel J, Braun M, Gottschalk G. Clostridium thermoautotrophicum species nova, a thermophile producing acetate from molecular hydrogen and carbon dioxide. Curr. Microbiol. 1981; 5:255-260.
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Record number: 775002
This LPSN page was printed on 2026-02-12 02:58:31